Total Synthesis of Isorosthin L and Isoadenolin I

被引:13
作者
Ao, Junli [1 ,2 ]
Sun, Chao [2 ]
Chen, Bolin [1 ]
Yu, Na [2 ]
Liang, Guangxin [2 ]
机构
[1] Nankai Univ, Coll Chem, State Key Lab Elementoorgan Chem, Tianjin 300071, Peoples R China
[2] ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
基金
中国国家自然科学基金;
关键词
Aldol reaction; ent-Kaurane diterpenoids; Natural products; Radical cyclization; Total synthesis; ENT-KAURANE DITERPENOIDS; UNIFIED STRATEGY; OXIDATION; ALCOHOLS; OLEFINS; ACID;
D O I
10.1002/anie.202114489
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Total syntheses of two Isodon diterpenes, isorosthin L and isoadenolin I, are reported. The synthetic strategy features a quick assembly of two simple building blocks through a diastereoselective intermolecular aldol reaction and a subsequent radical cyclization for efficient construction of a rather complex advanced intermediate bearing a quaternary stereocenter present in all Isodon diterpenes. Oxidative cleavage of the C-C bond in the cyclopentane enabled the conversion to a lactone moiety which is desired for the construction of the molecular skeleton through reductive coupling with an aldehyde carbonyl group.
引用
收藏
页数:5
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